Forced-draft lamp



Patented lan. 24, |899.

H. J. NUBFULK.

FORCED DRAFT LAMP.

(Application led Dec. 16, 1897.)

2 Sheets-Sheet l.

(No Model.)

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No. 6|8,l23. vPa'tented lah. 24, |899.

H. J. NRFLK.

FORCED DRAFT LAMP.

(Application filed Dec. 1B, 1897.) (No Model.) 2 Sheets-Sheet 2.

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'Unirse STATES PATENT rinesa IIAYXVARD J. NORFOLK, OF VATERTOVN, NEW YORK.

FORCED-DRAFT LAIVI P.

siencrr'rcrirron forming part of Letters Patent No. 618,123, dated January 24, 1899. Application filed December 16, 1897. Serial No` 662,201. (No model To @ZZ who/it it may concer/t.-

Beit known that I, HAYWARD J. NORFOLK,

a citizen of the United States, residing at lVatertown, in the county of Jefferson and State of New York, have invented a new and useful Forced-Draft Lamp, of which the following is a specification.

This invention relates to mechanical or forced-draft lamps in which the current of air created bythe flame is augmented by mechanical means, such as a fan and actuating mechanism therefor, for promoting combustion and securing a more intense light than would otherwise be possible without the increased current of air.

One of the chief objects of this invention is to enable the component parts of the motor to be accessible without disturbing other parts which are in working condition. In accordance with this invention should the driving- A spring become broken or disarranged or otherwise require attention it can be removed and repaired or cleaned without disturbing the train of gearing. On the other hand, should the train of gearing or any part thereof require cleaning or looking after it can be re- -moved without disturbing the driving-spring or the fan-shaft bearings. Should the fan or its mountings require attention, it can be removed without disturbing the train of gearing or the spring.

In carrying out the objects of the invention the casing of the motor is constructed in sections, each section inclosing a part of the movement and connected in such a manner as to admit of either one of the end sections being detached without disturbingr the other sections or the parts of the movement housed thereby.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

The improvement is susceptible of various changes in the form, proportion, andthe ininor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in which-= Figure l is an elevation of the spring-motor, a portion of the fan-casing being broken away and showing the lamp in outline by dotted lines. Fig. 2 is a vertical section thereof, showing the operating parts of the movement in elevation. Fig. 3 is a top plan view of the train of gearing, the fan, its casing, and the upper section of the motor-casing being removed. Fig. 4; is a detail view of the crowngear, the rubber spur-wheel, and the mountings therefor. Fig. 5 is a top plan view of the fan and fan-casing. A Corresponding and like parts are referred to in the following description and indicated in the several views of the accompanying drawings by the same reference characters. inasmuch as the invention resides in the mechanism for creating a forced draft through the lamp the style of the latter is immaterial and may embody a fiat or a circular wick,and, as shown, the mechanism is located centrally within the shell of the lamp inclosing the oil reservoir or fount, and the casing thereof is composed of a middle section l, a top section 2, and a bottom section 3, detachably connected so as to admit of either the top or the bottom section being removed without necessitating the loosening or removing of the other section. A series of bars 4 are rigidly attached to the middle section l, and their end portions overlap the top and bottom sections and are secured thereto by machinescrews 5, so as to admit of either one or both of the sections 2 and 3 being removed.

The spring-barrel 6 is located within the bottom section 3 and is formed with a vertical extension '7 at its top side, to which is secured the drive-gear 8 and through which passes the winding-arbor 9, to the lower end of which is applied the ratchet-wheel l0 to cooperate with a pawl ll to prevent the unwinding of the spring after the latter has been wound. This winding-arbor obtains a bearing in the lower end of the section 3 and in the upper end of the section l, the upper end of the section Sbeing cut away to provide for the passage therethrough of the part 7 and the drivegear 8, secured thereto. A shaft l2 obtains bearings at its ends in the upper part of the casing 2 and in a step 13, applied to the top portion of the section 3, and is provided with a pinion 14, inter-meshing with the drive-gear 8 and with a gear-wheel l5, constituting a part of the train of gearing 16, located in the upper section 2 and having the pivots of the several shafts journaled in bearings provided in the ends of the sections 1 and 2. An opening 17 is formed in the side of the section 1 opposite the lower end of the shaft 12 to admit of a proper adjustment of the latter when assembling the parts, and like openings 18 are formed in the sides of the section 2 for a similar purpose, these openings being closed by a sleeve 19, slipped over the sections 1 and 2, so as to exclude dust and foreign matter from entering therethrough into the Working parts.

The crown-gear 20 meshes with a pinion 21 on a transverse shaft 22, journaled at its ends in brackets 23 and 24 and provided with a spur-gear 25 for actuating the worm or fan shaft 26, j ournaled vertically and provided at its upper end with the fan 27. The bracket 24 has a base portion formed with a slot 2S, through which a clamp-screw 29 passes to secure it adj-ustably to the plate or upper end of the section 1, whereby the said bracket can be moved to secure a quick adjustment thereof for the pivot of the shaft 22. The upper end of the bracket 24 is bent horizontally and thence vertically, the pendent portion 30 bein g apertured to receive the pivot of the shaft 22. The bracket 23 has its upper portion bent horizontally,thence vertically,and again horizontally, as shown at 31, to provide abearing for the stud-shaft of the crown-gear 20. The pendent portion of the bracket 23 receives the pivot of the shaft 22 remote from the spurgear 25, and a set-screw 32 is threaded in the upper end of the said bracket, and its inner end is depressed to receive the conical end of the pivot, whereby any looseness in the shaft 22 may be taken up by tightening the setscrew 32, as will be readily understood.

rlhe fan-casing 33 is secured to the upper end of the motor-casing by brackets or feet 34, whereby a space 35 is had between it and the upper end of the motor-casing for the entrance of air, which passes int-o the fan-casing through an opening formed by cutting away the central portion of the lower end of the fan-casing, as indicated. A yoke 36 has adjustable connection with the upper end of the fan-casing, and consists of a bar having its end portions bent to receive clamp-screws 37, which pass through vertical slots 38 in the sides of the fan-casing and enter threaded openings in the bent ends of the bar or yoke, so as to hold the latter at the required elevation. The yoke is centrally apertured and receives a jewel 39, which is retained in place in the opening by plates 40 and 41, pivoted at one end to the opposite sides of the yoke and having their free ends extending over the opening in which is placed the jewel 39. The pivot of the worm or fan shaft 26 obtains a bearing in the pivoted plate 40 and jewel 39, and the lower pivot is stepped in a bar 42, secured to the upper end of the section 1. Should the fan become crippled in any manner, the casing 33 can be disconnected from the motor-casing, thereby permitting the fan to be removed for inspection and repairs. Should the train of gearing require attention, the section 2 of the motor-casing can be de tached, and the component parts of the gearing are exposed and can be cleaned, oiled, and repaired, as found necessary. By removing the lower section 3 the driving-sprin g is accessible for repairing, as hereinbefore described.

It will be observed that the mechanism is arranged in a compact form and within the space occupied by the spring-barrel and that the movement is protected from dust, the air circulating around and over the movement and up through the fan-casing, as indicated by the arrows in Fig. l. The lower end of the winding-arbor -9 is made angular to receive a key, by means of which the movement is wound up, as will be readily understood.

Having thus described the invention,what is claimed as new is-- l. In a mechanical lamp, the combination of a casing composed of a series of sections, means for connecting the said sections to admit of either one of the end sections being removed without disturbing the others, the spring-barrel located in one of the sections, and a train of gearing distributed between the remaining sections, substantially as set forth.

2. In a mechanical lamp, a motor-casing composed of a series of sections, means for detachably connecting the sections, a springbarrel located in the bottom section and having an extension provided with a drive-gear coming in the middle section, and a train of gearing placed in thetop section and having a shaft extending into the middle section and provided with a pinion intermeshing with the drive-gear,- substantially as set forth.

3. In a mechanical lamp, the combination of the motor-casing composed of a middle and end sections detachably connected, the middle and top sections having openings in their sides to facilitate the proper assembling of the parts, a spring-barrel located in the bottom section and havin gan extension provided with a drive-gear located in the middle section, a train of gearing placed in the top section and having one of its shafts projecting into the middle sectionand provided with a pinion intermeshing with the said drive-gear, and a sleeve encircling the top and middle sections and forming a dust-guard, substantially as set forth.

4. In a mechanical lamp, the combination with the train of gearing comprising a crowngear, of a transverse shaft provided with a pinion interm eshing with the crown-gear and having aspur-gear, a bracket adj ustably connected with a plate or part of the movement and having an overhanging portion forming a bearing for one pivot of the transverse shaft,

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a second bracket secured to a part of the movement and having an overhanging portion forming a bearing for the crown-gear and the other pivot of the transverse shaft, and a setscrew mounted in the upper portion of the last-mentioned bracket and having its inner end recessed to receive the adjacent pivot of the transverse shaft, substantially as set forth.

5. In a mechanical lamp, the combination with the movement, including a worm-shaft bearing a fan, of a casing located a distance above the motor-casingand inclosing the fan, and ayoke having adjustable connection with the casing and forming a bearing for the upper pivot of the fan-shaft, substantially as set forth.

6. In a mechanical lamp, the combination with the movement, including a worm-shaft bearing a fan, of a casing inclosing the fan, a yoke having its ends bent and forming a bearing for the upper pivot of the Worm-shaft, and means foradjustably connecting the bent ends of the yoke with the fan-casing, substantially as set forth.

7. In a mechanical lamp, the combination with the movement, including a worm-shaft and fan, of a casing inclosing the fan, a yoke having adjustable connection with the fancasing and provided centrally with an opening, a jewel placed in the said opening and receiving the upper pivot of the worm-shaft, and plates pivoted to the opposite sides of the yoke and extending over the opening therein to retain the jewel in place, the lower pivoted plate having an opening for the passage therethrough of the upper pivot of the worm-shaft, substantially as described.

In testimony that I claim the foregoing as my own I have hereto afIiXed my signature in the presence of two witnesses.

HAYWARD J. NORFOLK. lVitnesses:

FRANCIS N. FITCH, ANNA L. FITCH. 

